Pentair Südmo Balanced Double Seal Valves

Pentair Hygienic Balanced Double Seal Valves F269B+

Pentair Hygienic Balanced Double Seal Valves F269B+ are used for mixproof product isolation when safe separation of process and CIP fluids is required.

Product Description

Features

Lower balancer for increased product security and reduced water hammer effect.
Product contact parts manufactured from high quality 316L or 304L S/S bar.
Heavy walled body construction.
Semi-bright external surface finish.
Compact, light weight design.
Heavy duty cast body clamps (bolted type).
Various sealing options available.
Seat material FPM.
Metal plug stop, protects seat seals from wear or damage.
Resilient seated for positive isolation.
Free draining design, eliminates product puddling and air pockets.
Smooth ball shaped bodies, reduces turbulence and improves flow.
Smooth internal surfaces for ease of cleaning.
Maintenance friendly design.
Reversible actuator.
Leakage chamber between seals.
Clamped body style offers full 360° orientation of actuator.
Butt weld end connections (standard). Other end connections available on request.
Swage/Crimp type fluid connectors to CIP poppet valves provided with valve.

Description

Pentair Balanced Double Seal Valve is driven by an all stainless steel spring return linear actuator and is configured as standard Spring-To-Close although it can easily be switched to Spring-To-Open if required. The double seal mix-proof valve is designed with a robust one piece fully machined stainless steel body (larger sizes can be fabricated on special request). Along with heavy duty cast body clamps, the valve is capable of withstanding pressure spikes well beyond the recommended maximum 10 bar pressure rating – conventional unbalanced double seal valves are vulnerable to uncontrollable pressure spikes within the process. When air pressure is applied to the cylinder, two small pneumatic normally open (NO) poppet valves (a leak detecting and a CIP valve) instantly close and the main valve plug moves through its entire stroke changing the valve from the closed to open position.

When the air is removed or vented from the cylinders the main valve closes, causing the two smaller valves to open, thereby venting and draining the leakage chamber to atmosphere. With the main valve in the closed position the leakage chamber can be flushed with water or CIP to clean away product residues. While the balanced double seal valve is in the closed position, one side of the valve can be CIP cleaned while product remains on the other side fully protected from possible contamination by the double seals and leakage chamber.

Fields of application

Pentair Balanced Double Seal Valves are used to control mix-proof process or CIP fluids in the food processing, canneries, wineries, dairy, brewing, pharmaceutical, beverage and chemical industries. The double seal valves can be easily automated with the Pentair Easymind Electronic Control Top.

Options

Upper balancer
Mirror polished internals
Clamp and thread end connections
Booster / Damper / 3-Position actuator
Quick release body clamps

Technical data

Working temperature: -5 to +100˚C (-5 to 120˚C for static condition)

Sterilizing temperature: Up to 140˚C for 30 min’s (steam for static position)

Maximum pressure, valve body: 10bar fluid pressure

Maximum pressure, valve seat: See separate plug lifting chart

Minimum pressure: Full vacuum

Operating air pressure: 4 to 8bar max.

Air connections: R⅛” (BSP)

Surface finish: Internal < 0.8 Ra, external hairline/ buffed

Length tolerance between ends: 0.5mm ~ ±1.0mm

Parallelism or squareness of ends: 0.5° or less

Technical Specification

Parts List

No.	Description	Material	Standards
1	Body	316L S/S, 304L S/S	ASTM A276
2	Plug/shaft	316L S/S	ASTM A276
3	Seat seal	EPDM, NBR, PTFE, FKM	FDA
4	CIP/leak detect valves	316L S/S	ASTM A276
5	Body seal	EPDM, NBR, FKM	FDA
6	Stem seal	Santoprene® EPDM, NBR, FKM	FDA
7	Shaft bush	PTFE, UHMWPE	Commercial
8	Body clamp	304 CF8 S/S	ASTM A743 CF8
9	Actuator assembly	304 S/S	Various
10	Sight housing	304 CF8 S/S	ASTM A743 CF8
11	Bottom cover	T304	ASTM A276
12	Balancer guide	PETP	Commercial
13	Balancer seal	EPDM, NBR, FKM	FDA
14	Balancer shaft	316L S/S	ASTM A276

Dimensions (mm)

Size Inch OD	Size Metric	ØA x t Inch OD	ØA x t Metric	ØD	H	H1	H2	H3 Inch OD	H3 Metric	H4	H5	L1	L2
1.0”	025	25.4 x 1.6	29.5 x 1.6	102	352	6.0	277	55.0	54.0	46.0	45.5	55	98
1.5”	040	38.1 x 1.6	41.5 x 1.6	102	389	14.0	314	74.5	73.5	58.7	75.0	68	112
2.0”	050	50.8 x 1.6	53.5 x 1.6	102	436	25.3	336	77.0	76.0	75.0	81.3	68	112
2.5”	065	63.5 x 1.6	69.5 x 1.6	141	557	38.0	436	92.5	91.5	86.7	103.0	84	127
3.0”	080	76.2 x 1.6	84.5 x 1.6	141	586	38.0	458	109.0	108.0	102.0	107.0	84	127
4.0”	100	101.6 x 1.6	103.5 x 1.6	168	700	39.0	558	141.0	140.0	130.5	123.0	99	142
5.0”	125	129.0 x 2.0	130.0 x 2.0	219	762	50.0	413	156.0	155.0	185.0	150.0	128	171
6.0”	150	152.4 x 2.0	155.0 x 2.0	219	762	50.0	413	156.0	155.0	185.0	150.0	128	171

NOTE: Metric bodies are created from standard Inch OD bodies by fitting eccentric reducers. Santoprene® is the registered trademark of Exxon Mobil.

Air Consumption for Single Acting Actuators (liters of free air)

	Valve size (actuator size)
Supply pressure bar/(psi)	025-040 (100S)	050-065 (100)	080-100 (140)	*100 (170)**	125-150 (200)
4.1 (60)	0.89	1.23	3.28	4.71	8.94
6.2 (90)	1.25	1.72	4.60	6.60	12.54
8.3 (120)	1.61	2.21	5.92	8.50	16.14

* (Option)
100 size valves can also be fitted with the Model 170 actuator as an option. This will boost the pressure holding power if required

Recommended Seat Flushing CIP Flow/Velocity Information

With the main valve in the closed position, it is recommended the leakage chamber be flushed with water or CIP solutions to clean away any product residues after each valve operation. Also for most effective clean, the main valve should be pulsed open during entire systems cleaning cycle.

CIP flow rate: 3.5 – 4.0l/min at 1.5bar inlet pressure

CIP velocity: 1.5m/s (minimum)